* {
    margin: 0;
    padding: 0;
}
canvas {
    background: #000;
}
#avatarWrapper {
    position: absolute;
    top: 50%;
    right: 20px;
    width: 20%;
    height: 20%;
    margin-top: -10%;
    border: 5px solid #fff;
    border-radius: 50%;
    overflow: hidden;
}
#capture {
    position: relative;
    font-size: 0;
}
#bg {
    width: 100%;
    height: auto;
}
#avatar {
    width: 100%;
}
.my-btn {
    display: inline-block;
    padding: 10px;
    margin: 10px;
    border-radius: 5px;
    background: deepskyblue;
    color: #fff;
}